Temp System Thermostat Reset; Broadcast/Daylight Savings Time; Network Time Broadcast; Network Time Request - Carrier 33CS Installation, Service, And Troubleshooting Instructions

OUTDOOR-AIR TEMPERATURE SENSOR OUT OF
RANGE — An HF10 error is issued when the outdoor-air
temperature sensor is reading below –40 F or greater than
150 F. The outdoor air temperature sensor can be recalibrated.
The HF10 error will automatically clear when the sensor read-
ing is back within the allowable range.
To check the outdoor-air temperature sensor:
1. Check that the outdoor-air temperature sensor wiring and
connections to the circuit board are physically intact. En-
sure the 5-conductor control wiring running between the
relay pack and the TEMP system thermostat is not run
near AC, control, or communication bus wiring. Maintain
a minimum separation of 12 in. or more between other
wiring and remote room sensor wiring.
2. Check the outdoor-air temperature sensor calibration.
Calibrate the sensor by manual calibration at the TEMP
system thermostat using the Outdoor-Air Temperature
Sensor Calibration function (category 5, option 9) and an
accurate thermometer. Measure the temperature at the
outdoor-air temperature sensor location using the accu-
rate thermometer. Wait for the reading to stabilize. Using
the set point buttons, increase or decrease the temperature
display to match the reading of the thermometer.
HUMIDITY SENSOR OUT OF RANGE — An HF11 error is
issued when the humidity sensor is reading below 0% or
greater than 100%. The humidity sensor can be recalibrated.
The HF11 error will automatically clear when the sensor read-
ing is back within the allowable range.
To check the humidity sensor:
1. Check if the humidity sensor wiring and connections to
the circuit board are physically intact. Ensure the 5-
conductor control wiring running between the relay pack
and the TEMP system thermostat is not run near AC,
control, or communication bus wiring. Maintain a mini-
mum separation of 12 in. or more between other wiring
and remote room sensor wiring.
2. Check the humidity sensor calibration. Calibrate the sen-
sor by manual calibration at the TEMP system thermostat
using the Humidity Sensor Calibration function (category
5, option 12) and an accurate psychrometer. Measure the
humidity at the humidity sensor location using the accu-
rate psychrometer. Wait for the reading to stabilize. Using
the set point buttons, increase or decrease the humidity
display to match the reading of the psychrometer.
TEMP System Thermostat Reset —
tem thermostat constantly verifies operation and the informa-
tion it utilizes. When it finds a fault in a specified area, the
TEMP system thermostat resets.
The TEMP system thermostat will reset when it finds fault
in the inability of the microprocessor to properly operate the
programs used by the TEMP system thermostat causes an im-
proper response to zone and system conditions.
Each piece of information received by the TEMP system
thermostat is verified to eliminate the use of incorrect data.
Each portion of information stored by the TEMP system ther-
mostat is verified to eliminate the use of incorrect data. If incor-
rect data is found the TEMP system thermostat will reset and
replace the incorrect data with the default value.
When possible, system communication and data storage
faults are corrected by the TEMP system thermostat. When
corrections cannot be made the information is regarded as in-
valid and not utilized.
TEMP system thermostat can send and receive broadcasts.
must be configured as described below:
• one TEMP system thermostat must have a timeclock and be
a network time broadcaster unless time is received from a
different network device (comfort controller). More than
one timeclock on a network is allowed
• there must be only one TEMP system thermostat config-
ured as a network time requester
• one and only one network device must be configured as the
broadcast acknowledger per bus
• all other devices should be configured to receive network
time
Network Time Broadcast —
Broadcast option is set to ON, the TEMP system thermostat (if
equipped with a timeclock) will broadcast CCN time and date
on the network 2 times a day.
TEMP system thermostat will not broadcast time and date.
left set point buttons to toggle the option ON or OFF. The de-
fault is OFF.
NOTE: The TEMP system thermostat must have its own time-
clock to broadcast network time, otherwise all network devices
will not function correctly.
Network Time Request —
Request option is set to ON, the TEMP system thermostat will
request CCN time and date from the network once every
30 seconds. If there are multiple TEMP system thermostats on
a network there must be at least one TEMP system thermostat
requesting time.
TEMP system thermostat will not request time and date.
left set point buttons to toggle the option ON or OFF. The de-
fault is OFF.
Receive Network Time —
Time option is set to ON, the TEMP system thermostat will ac-
cept a broadcast of CCN time and date from the network.
The TEMP sys-
TEMP system thermostat will not accept a CCN time and date
broadcast.
left set point buttons to toggle the option ON or OFF. The de-
fault is ON.
Broadcast Acknowledger —
Acknowledger option is set to ON, the TEMP system thermo-
stat will acknowledge any CCN broadcast. Every primary and
secondary bus must have only one broadcast acknowledger.
the TEMP system thermostat will not acknowledge a CCN
broadcast.
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BROADCAST/DAYLIGHT SAVINGS TIME

As a part of the Carrier Comfort system, on the network, the
For the system to function correctly, the following devices
When the Network Time Broadcast option is set to OFF, the
To set the option, configure category 9, option 5. Use the
When the Network Time Request option is set to OFF, the
To set the option, configure category 9, option 3. Use the
When the Receive Network Time option is set to OFF, the
To set the option, configure category 9, option 4. Use the
When the Broadcast Acknowledger option is set to OFF,
When the Network Time
When the Network Time
When the Receive Network
When the Broadcast